Osprey 38L–48L Expandable Waterproof Backpack
Engineered for the adventurer who refuses to be caught unprepared, the HeadPointe Expandable Waterproof Backpack adapts from a streamlined 38L day pack to a full 48L expedition load — all in one pack. Built from wear-resistant nylon with a spine-protection carry system and an included rain cover, this is the pack that goes wherever the trail takes you, from the Cascades to the Dolomites.
Why Osprey
Osprey gear is built to perform where it counts. Our packs are engineered to the same exacting standards as our outerwear and accessories — designed for serious adventurers tackling serious terrain across all seasons and conditions.
Key Features
38L–48L Expandable Capacity — Adjustable storage volume adapts to your load, from a lean day-hike setup to a fully loaded multi-day kit.
Waterproof Nylon Construction — Water-resistant nylon shell (outer and lining) protects your gear in rain, stream crossings, and unpredictable mountain weather.
Spine Protection Carry System — Ergonomic curved shoulder straps with spine-protection design reduce fatigue and distribute load for all-day comfort on long approaches.
SOS Emergency Whistle — Built-in safety feature ensures you're prepared when conditions shift far from the trailhead.
Included Rain Cover — Dedicated rain cover keeps your pack and gear fully protected in heavy downpours and wet conditions.
Wear-Resistant Build — Durable nylon construction handles the abuse of real backcountry use across all seasons.
3 Colorways — Black, Khaki Green, and Purple Red — refined trail-ready colors for every adventurer.
Perfect For
Day hiking · Weekend backpacking · Multi-day trekking · Outdoor sports · Leisure travel · Alpine camping
What's Included
1 × HeadPointe Backpack · 1 × Rain cover
